结果1 题目用matlab求函数在指定点的数值导数f(x)=根号(x^2+1) x=1,2,3 相关知识点: 试题来源: 解析 clearclcsyms xf = sqrt(x^2+1)diff_f = diff(f)y1 = subs(diff_f,x,1)y2 = subs(diff_f,x,2)y3 = subs(diff_f,x,3)结果y1 = 0.7071y2 = 0.8944y3 = 0.9487...
定义一个函数 fx = @(x) x.^3;创建函数自变量x的值范围 x=0:0.01:2;查找x=1位置 k = find(x==1);求f在x_point处的导数 d_f = diff(fx(x)/0.01;在x=1处的数值导数 d_f(k)在上述例子中，我们定义了一个简单的函数f(x)=x³，然后在x = 1处求它的导数。diff函数是...
用matlab求函数在指定点的数值导数代码如下：clear;clc;syms x f = sqrt(x^2+1);diff_f = diff(f);y1 = subs(diff_f,x,1)y2 = subs(diff_f,x,2)y3 = subs(diff_f,x,3)结果：y1 =0.7071 y2 =0.8944 y3 =0.9487
f(x)=根号(x^2+1) x=1,2,3 扫码下载作业帮搜索答疑一搜即得 答案解析 查看更多优质解析 解答一 举报 clear;clc;syms xf = sqrt(x^2+1);diff_f = diff(f);y1 = subs(diff_f,x,1)y2 = subs(diff_f,x,2)y3 = subs(diff_f,x,3)结果:y1 =0.7071y2 =0.8944y3 =0.9487 解析看不懂?
f(x)=根号(x^2+1) x=1,2,3 扫码下载作业帮搜索答疑一搜即得 答案解析 查看更多优质解析 解答一 举报 clear;clc;syms xf = sqrt(x^2+1);diff_f = diff(f);y1 = subs(diff_f,x,1)y2 = subs(diff_f,x,2)y3 = subs(diff_f,x,3)结果:y1 =0.7071y2 =0.8944y3 =0.9487 解析看不懂?
用matlab求函数在指定点的数值导数f(x)=根号(x^2+1) x=1,2,3 答案 clear;clc;syms xf = sqrt(x^2+1);diff_f = diff(f);y1 = subs(diff_f,x,1)y2 = subs(diff_f,x,2)y3 = subs(diff_f,x,3)结果:y1 =0.7071y2 =0.8944y3 =0.9487相关...
用matlab求函数在指定点的数值导数代码如下：clear;clc;syms x f = sqrt(x^2+1);diff_f = diff(f);y1 = subs(diff_f,x,1)y2 = subs(diff_f,x,2)y3 = subs(diff_f,x,3)结果：y1 =0.7071 y2 =0.8944 y3 =0.9487